Jorge Masvidal will face Kamaru Usman at UFC 251 on July 11 at Yas Island in Abu Dhabi, pending coronavirus testing.
UFC President Dana White discussed the matchup on ESPN's SportsCenter Sunday night:
Masvidal will also have to pass a coronavirus test before stepping in as a replacement against Usman.
Though Burns was the No. 1 contender in the division, Masvidal has been as good as anyone in the sport over the past year.
The 35-year-old earned a knockout win over Darren Till in March 2019 and then turned heads with a five-second knockout of Ben Askren. Last November, he defeated Nate Diaz by knockout to win the Baddest Motherf--ker belt.
He also has a history with Usman, including an altercation in January:
It's part of the reason his manager, Abraham Kawa, said his fighter is "absolutely willing" to take on this fight despite limited time to prepare, per ESPN's Ariel Helwani.
Usman, 33, won the welterweight belt in March 2019 with a win over Tyron Woodley and then defended it in December with a knockout win over Colby Covington.
UFC 251 will also featured a featherweight title bout between Alex Volkanovski and Max Holloway along with a bantamweight fight between Petr Yan and Jose Aldo.